Ultrapotent human antibodies protect against SARS-CoV-2 challenge via multiple mechanisms

Author:

Tortorici M. Alejandra12ORCID,Beltramello Martina3ORCID,Lempp Florian A.4,Pinto Dora3,Dang Ha V.1ORCID,Rosen Laura E.4ORCID,McCallum Matthew1ORCID,Bowen John1ORCID,Minola Andrea3,Jaconi Stefano3,Zatta Fabrizia3,De Marco Anna3ORCID,Guarino Barbara3ORCID,Bianchi Siro3ORCID,Lauron Elvin J.4,Tucker Heather4ORCID,Zhou Jiayi4ORCID,Peter Alessia3ORCID,Havenar-Daughton Colin4ORCID,Wojcechowskyj Jason A.4ORCID,Case James Brett5ORCID,Chen Rita E.5,Kaiser Hannah4ORCID,Montiel-Ruiz Martin4ORCID,Meury Marcel4ORCID,Czudnochowski Nadine4ORCID,Spreafico Roberto4ORCID,Dillen Josh4ORCID,Ng Cindy4ORCID,Sprugasci Nicole3ORCID,Culap Katja3ORCID,Benigni Fabio3ORCID,Abdelnabi Rana6ORCID,Foo Shi-Yan Caroline6ORCID,Schmid Michael A.3ORCID,Cameroni Elisabetta3ORCID,Riva Agostino7ORCID,Gabrieli Arianna7ORCID,Galli Massimo7ORCID,Pizzuto Matteo S.3ORCID,Neyts Johan6ORCID,Diamond Michael S.5ORCID,Virgin Herbert W.489ORCID,Snell Gyorgy4,Corti Davide3,Fink Katja3ORCID,Veesler David1ORCID

Affiliation:

1. Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.

2. Institut Pasteur and CNRS UMR 3569, Unité de Virologie Structurale, Paris, France.

3. Humabs BioMed SA, a subsidiary of Vir Biotechnology, Bellinzona, Switzerland.

4. Vir Biotechnology, San Francisco, CA 94158, USA.

5. Departments of Medicine, Molecular Microbiology, Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA.

6. Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, KU Leuven, Belgium.

7. III Division of Infectious Diseases, Luigi Sacco University Hospital, University of Milan, Italy.

8. Washington University School of Medicine, St. Louis, MO, USA.

9. UTSouthwestern Medical Center, Dallas, TX, USA.

Abstract

A strong cocktail against SARS-CoV-2 Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is initiated by the trimeric spike protein that decorates the virus and binds the ACE2 receptor. Antibodies against the spike that neutralize viral infection have potential as therapeutics. Tortorici et al. describe two very potent antibodies, S2E12 and S2M11. Electron microscopy structures characterized the binding and showed that S2E12 traps the spike in a conformation that cannot bind ACE2. Both antibodies protected hamsters against SARS-CoV-2 challenge and may be useful in antibody cocktails to combat the virus and prevent the development of resistance. Science , this issue p. 950

Funder

National Institute of General Medical Sciences

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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